The equation for the formation of hydrogen iodide from H2 and I2 is: H2 (g)+I2 (g)2 HI(g)   The value of Kp for the reaction is 65.0  at 905 °C. What is the equilibrium partial pressure of HI in a sealed reaction vessel at 905 °C if the initial partial pressures of H2 and I2 are both 0.120 atm and initially there is no HI present?

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